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authorEmma Foley <emma.l.foley@intel.com>2018-02-19 23:15:11 +0000
committerEmma Foley <emma.l.foley@intel.com>2018-03-01 15:06:41 +0000
commit3c2924769969733632d22e128b48fccee0043069 (patch)
tree419712ba7fc796896c07c167f292ebb0baaf3b04
parent5c2824d8e184a3ff63a52e7c7cca7b4e6f0c0222 (diff)
Add methods to get an existing stack
* Add yardstick/orchestrator/heat.py:HeatStack.get * Add yardstick/benchmark/contexts/heay.py:HeatContext.retrieve_existing_stack JIRA: YARDSTICK-886 Change-Id: I6974b79a25f98066a49b1bc8ccd11383e7962091 Signed-off-by: Emma Foley <emma.l.foley@intel.com>
-rw-r--r--yardstick/benchmark/contexts/heat.py9
-rw-r--r--yardstick/orchestrator/heat.py27
-rw-r--r--yardstick/tests/unit/orchestrator/test_heat.py87
3 files changed, 118 insertions, 5 deletions
diff --git a/yardstick/benchmark/contexts/heat.py b/yardstick/benchmark/contexts/heat.py
index be8815060..ed301a998 100644
--- a/yardstick/benchmark/contexts/heat.py
+++ b/yardstick/benchmark/contexts/heat.py
@@ -26,6 +26,7 @@ from yardstick.benchmark.contexts.model import Server
from yardstick.benchmark.contexts.model import update_scheduler_hints
from yardstick.common import exceptions as y_exc
from yardstick.common.openstack_utils import get_neutron_client
+from yardstick.orchestrator.heat import HeatStack
from yardstick.orchestrator.heat import HeatTemplate
from yardstick.common import constants as consts
from yardstick.common.utils import source_env
@@ -312,6 +313,14 @@ class HeatContext(Context):
# let the other failures happen, we want stack trace
raise
+ def _retrieve_existing_stack(self, stack_name):
+ stack = HeatStack(stack_name)
+ if stack.get():
+ return stack
+ else:
+ LOG.warning("Stack %s does not exist", self.name)
+ return None
+
def deploy(self):
"""deploys template into a stack using cloud"""
LOG.info("Deploying context '%s' START", self.name)
diff --git a/yardstick/orchestrator/heat.py b/yardstick/orchestrator/heat.py
index 403c7e8d9..78e9c3df2 100644
--- a/yardstick/orchestrator/heat.py
+++ b/yardstick/orchestrator/heat.py
@@ -44,6 +44,13 @@ class HeatStack(object):
self._cloud = shade.openstack_cloud()
self._stack = None
+ def _update_stack_tracking(self):
+ outputs = self._stack.outputs
+ self.outputs = {output['output_key']: output['output_value'] for output
+ in outputs}
+ if self.uuid:
+ _DEPLOYED_STACKS[self.uuid] = self._stack
+
def create(self, template, heat_parameters, wait, timeout):
"""Creates an OpenStack stack from a template"""
with tempfile.NamedTemporaryFile('wb', delete=False) as template_file:
@@ -52,11 +59,21 @@ class HeatStack(object):
self._stack = self._cloud.create_stack(
self.name, template_file=template_file.name, wait=wait,
timeout=timeout, **heat_parameters)
- outputs = self._stack.outputs
- self.outputs = {output['output_key']: output['output_value'] for output
- in outputs}
- if self.uuid:
- _DEPLOYED_STACKS[self.uuid] = self._stack
+
+ self._update_stack_tracking()
+
+ def get(self):
+ """Retrieves an existing stack from the target cloud
+
+ Returns a bool indicating whether the stack exists in the target cloud
+ If the stack exists, it will be stored as self._stack
+ """
+ self._stack = self._cloud.get_stack(self.name)
+ if not self._stack:
+ return False
+
+ self._update_stack_tracking()
+ return True
@staticmethod
def stacks_exist():
diff --git a/yardstick/tests/unit/orchestrator/test_heat.py b/yardstick/tests/unit/orchestrator/test_heat.py
index bde6647ed..9ab8740e3 100644
--- a/yardstick/tests/unit/orchestrator/test_heat.py
+++ b/yardstick/tests/unit/orchestrator/test_heat.py
@@ -9,6 +9,7 @@
import tempfile
+import munch
import mock
from oslo_serialization import jsonutils
from oslo_utils import uuidutils
@@ -40,12 +41,16 @@ class HeatStackTestCase(unittest.TestCase):
self._mock_stack_delete = mock.patch.object(self.heatstack._cloud,
'delete_stack')
self.mock_stack_delete = self._mock_stack_delete.start()
+ self._mock_stack_get = mock.patch.object(self.heatstack._cloud,
+ 'get_stack')
+ self.mock_stack_get = self._mock_stack_get.start()
self.addCleanup(self._cleanup)
def _cleanup(self):
self._mock_stack_create.stop()
self._mock_stack_delete.stop()
+ self._mock_stack_get.stop()
heat._DEPLOYED_STACKS = {}
def test_create(self):
@@ -101,6 +106,88 @@ class HeatStackTestCase(unittest.TestCase):
self.assertFalse(heat._DEPLOYED_STACKS)
self.mock_stack_delete.assert_called_once_with(id, wait=True)
+ def test_get(self):
+ # make sure shade/get_stack is called with the appropriate vars
+ self.mock_stack_get.return_value = munch.Munch(
+ id="my-existing-stack-id",
+ outputs=[
+ {
+ u'output_value': u'b734d06a-dec7-...',
+ u'output_key': u'ares.demo-test-port-network_id',
+ u'description': u''
+ },
+ {u'output_value': u'b08da78c-2218-...',
+ u'output_key': u'ares.demo-test-port-subnet_id',
+ u'description': u''
+ },
+ {u'output_value': u'10.0.1.0/24',
+ u'output_key': u'demo-test-subnet-cidr',
+ u'description': u''
+ },
+ {u'output_value': u'b08da78c-2218-...',
+ u'output_key': u'demo-test-subnet',
+ u'description': u''
+ },
+ {u'output_value': u'b1a03624-aefc-...',
+ u'output_key': u'ares.demo',
+ u'description': u''
+ },
+ {u'output_value': u'266a8088-c630-...',
+ u'output_key': u'demo-secgroup',
+ u'description': u''
+ },
+ {u'output_value': u'10.0.1.5',
+ u'output_key': u'ares.demo-test-port',
+ u'description': u''
+ },
+ {u'output_value': u'10.0.1.1',
+ u'output_key': u'demo-test-subnet-gateway_ip',
+ u'description': u''
+ },
+ {u'output_value': u'',
+ u'output_key': u'ares.demo-test-port-device_id',
+ u'description': u''
+ },
+ {u'output_value': u'172.24.4.7',
+ u'output_key': u'ares.demo-fip',
+ u'description': u''
+ },
+ {u'output_value': u'fa:16:3e:6c:c3:0f',
+ u'output_key': u'ares.demo-test-port-mac_address',
+ u'description': u''}
+ ]
+ )
+ expected_outputs = {
+ 'ares.demo-test-port-network_id': 'b734d06a-dec7-...',
+ 'ares.demo-test-port-subnet_id': 'b08da78c-2218-...',
+ 'demo-test-subnet-cidr': '10.0.1.0/24',
+ 'demo-test-subnet': 'b08da78c-2218-...',
+ 'ares.demo': 'b1a03624-aefc-...',
+ 'demo-secgroup': '266a8088-c630-...',
+ 'ares.demo-test-port': '10.0.1.5',
+ 'demo-test-subnet-gateway_ip': '10.0.1.1',
+ 'ares.demo-test-port-device_id': '',
+ 'ares.demo-fip': '172.24.4.7',
+ 'ares.demo-test-port-mac_address': 'fa:16:3e:6c:c3:0f',
+ }
+
+ stack_id = "my-existing-stack-id"
+ self.heatstack.name = "my-existing-stack"
+ self.heatstack.get()
+
+ self.mock_stack_get.assert_called_once_with(self.heatstack.name)
+ self.assertEqual(expected_outputs, self.heatstack.outputs)
+ self.assertEqual(1, len(heat._DEPLOYED_STACKS))
+ self.assertEqual(self.heatstack._stack,
+ heat._DEPLOYED_STACKS[stack_id])
+
+ def test_get_invalid_name(self):
+ # No context matching this name exists
+ self.mock_stack_get.return_value = []
+ self.heatstack.name = 'not-a-stack'
+ self.heatstack.get()
+ self.assertEqual(0, len(heat._DEPLOYED_STACKS))
+
class HeatTemplateTestCase(unittest.TestCase):